Java relational operators are used to compare two values and return a boolean value true or false. The following are the relational operators in Java:

1. Greater than: >
   The greater than operator checks whether the left operand is greater than the right operand.

int a = 10;
int b = 5;
boolean result = a > b; // result is true

2. Less than: <
   The less than operator checks whether the left operand is less than the right operand.

int a = 10;
int b = 5;
boolean result = a < b; // result is false

3. Greater than or equal to: >=
   The greater than or equal to operator checks whether the left operand is greater than or equal to the right operand.

int a = 10;
int b = 5;
boolean result = a >= b; // result is true

4. Less than or equal to: <=
   The less than or equal to operator checks whether the left operand is less than or equal to the right operand.

int a = 10;
int b = 5;
boolean result = a <= b; // result is false

5. Equal to: ==
   The equal to operator checks whether the left operand is equal to the right operand.

int a = 10;
int b = 10;
boolean result = a == b; // result is true

6. Not equal to: !=
   The not equal to operator checks whether the left operand is not equal to the right operand.

int a = 10;
int b = 5;
boolean result = a != b; // result is true